I've just fitted a SU 21 spectro unit on an iPF6450 and wondered if anyone had any experience of using it?

The Canon CCMC software does include a testchart creation/measurement function, but it's limited to a maximum 918 patches. It is possible to get it to load larger targets and print them, but the measurement process falls over.

The 918 patch data was exported OK, and easy enough to read into i1Profiler, although at only Lab readings, not quite so flexible for profile building.

So, is there any better ways of getting measurement data out of this device? The spectro is an X-rite one with switchable UV cut, and the massive spectro unit is fitted with drying fans.

Of course this is something of an academic question for me, since the spectro is aimed at a very different market than the fine art/photo side of things I look at in reviews. It's just that having it sitting there (more accurately 'looming' given its size) in the room next door leaves me itching to see what can be done with it ;-)

I have talked to few people from canon management group, they said this device is aimed to digital proofing env. which mean I believe the SU-20 would run smoothly with some high end rip such as colorgate. But the CMCC, I'm not sure about it.

Some more experiments with it have not let me get beyond the 918 patch limit - the Canon software breaks larger targets into 918 patch sheets and the reading process falls over at the end of the first page.

Ho hum, seems like I've too much spare time/paper/ink - well it had to be tried :-)